Pass to compute livein info

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1

Hi all,

Is there a pass that computes livein information for each MachineBasicBlock? I tried to find such a pass but could not find any. I am trying to use the livein information to get dead registers to insert some instructions right before code emission but the livein information seems to be invalidated by some pass. I might need to recompute the livein information before my pass. Thanks a lot.

Bin

2

No, the liveness is not preserved by late code generation passes, and there is currently no way of recomputing it.

/jakob